We have an 89 year old house. Our backroom, unheated, has many layers of paint, primer and varnish and stain. At the presernt time there are signs of alligatoring. Since it is unheated, except for a portable heater, we would like to strip the old finishes off and put a clear coat finish over the wood. My question, anyone have a safe way to do this AT HOME? Planning to do this in the early Spring.